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Finding the Fourth Proportional to 68,120.87, 102,181.88 and 23,747.54

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Solution

The fourth proportional to 68,120.87, 102,181.88 and 23,747.54 is: 35,621.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,120.87 : 102,181.88 = 23,747.54 : x
  2. Step 2: Convert to fraction form
    68,120.87/102,181.88 = 23,747.54/x
  3. Step 3: Cross multiply
    68,120.87x = 102,181.88 × 23,747.54
  4. Step 4: Simplify right side
    68,120.87x = 2,426,568,282.58
  5. Step 5: Solve for x
    x = 2,426,568,282.58/68,120.87
  6. Step 6: Final answer
    x = 35,621.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.